Not the finiest x-wing player but seem to have better success with large ships. Trying to work out how to counter 'meta' lists and came up with this

Firespray-31: · Boba Fett (39)
Adaptability (Increase) (0)
Ion Cannon (3)
Engine Upgrade (4)
· Dengar (3)
Glitterstim (2)
Lancer-class Pursuit Craft: · Ketsu Onyo (38)
Veteran Instincts (1)
· Zuckuss (1)
· Shadow Caster (3)
Glitterstim (2)
Glitterstim (2)
-- TOTAL ------- 98/100p. --

The 1 - 2 punched from ketsu's tractor tokens and bobas rerolls should hurt current scum and rebel builds. Not sure how id fair against imperial alpha lists

Keen to here what people with more experience could advise

Zuckuss seems weak on Ketsu, post-FAQ. He's been errata'd so that he no longer can be used if you're already stressed, and you have double Glitterstim, so you won't be able to Zuckuss when you Glitter. I'd swap him for K4 Security Droid or Dengar crew.

It also seems weak to me to have both Elite upgrades dedicated to just PS. Getting to 9 is OK, but it might be better to get more action efficiency in the build. Push the Limit and Engine Upgrade is great on Ketsu. If dropping to PS 7 on Ketsu, perhaps switch from Boba Fett to Kath Scarlet? Here's a build which keeps a lot of the feel (but not the coolness of Boba Fett).

Kath Scarlet (Expertise, Dengar, Ion Bombs)

Ketsu Onyo (Push the Limit, K4 Security Droid, Glitterstim, Shadowcaster, Engine Upgrade).

Kath will still be attacking a potential double-tractor'd target with full rerolls and focus each turn (leaving her free to Evade). Meanwhile, the Ion Bomb still provides some Ion control. Ketsu gets into the thick of things, trying to catch people in both arcs (probably keep the arc to the side, rather than double-front). Glitterstim is for when you bump.

@theBitterFig great suggestions thank you very much. Ill have to try this out. Think ill still suffer against high ps imperial alpha that is becoming common in my local meta

VI Ketsu can be quite effective. Though personally, I'd move Dengar to her rather than Boba as he gets to reroll for free in r1, and EU makes that easier to get to. You can also put tail gunner on Boba or recon specialist, as double focus can be useful.

If you decide to follow theBitterfig's advice and switch to kath, here's my Ketsu/Kath list, played a couple of times with it and it's pretty darn good:

Firespray-31: •Kath Scarlet (52)
Expertise (4)
Heavy Laser Cannon (7)
•Dengar (3)

Pursuit Craft: •Ketsu Onyo (47)
•Shadow Caster (3)
Push the Limit (3)
K4 Security Droid (3)

Total: 99/100

@DrakodaLord @DanteStorm great suggestions thank you